ProfiMessage
l Theminimumisthesmallestvaluewithinthedataseries.
l Themaximumisthegreatestvaluewithinthedataseries.
l Thevarianceisthemeansquareerrorrelativetothemean.
l Thenumberofmeasurementvaluesarevaluesintheblockinterval.
l Thestandarddeviationisthesquarerootofthevariance(nottheaverage
deviation!).
l TheTrueRMSistherootfromthesumofthesquaresofthevaluesbythe
numberofvalues.
l Thearithmeticmean,alsocalledtheaverage,isthesumofallvaluesofa
dataseriesdividedbythenumberofvalues.
l ThegeometricmeanistheNthrootfromtheproductofnvalues.
l Theharmonicmeanisthereciprocalfromanaverageofreciprocals.
4.7.21 Statusfilter
Thefunctionallowscertainstatusmessagestobesuppressedandanotheroutput
tobecontrolled.Youcanpassonallstatusmessagestoadigitialoutputtobe
informedofproblems,butrelayonlycertainmessagestoaseconddigitialoutput,
suchastheactionsofswitchingoffmachinesetc.
RefertoStatusmonitoring,Statusgenerator.
Available alarm functions and their meaning
Selection Description
Alarm Nofunctioncurrentlyavailable
Wirebreak Wirebreakinmonitoredchannel
Configurationerror Errorinmonitoredchannelconfiguration
Invalidvalue Invalidvalueinmonitoredchannel
Measuringrange
overrun
ThemeasuredvalueisabovetheA/Dconverter
measuringrange
Measuringrange
underrun
ThemeasuredvalueisbelowtheA/Dconverter
measuringrange
Hardwareerror Errorinthehardware
Simulatedvalue
Aninternallygeneratedvaluefortesting,for
examplefromthePROFIBUS
Nonumber(NAN=
NotANumber)
Acalculationhasnotreturnedavalidnumber,for
examplerootofnegativenumbers
Infinitevalue
Acalculationisinfinite,forexampledivisionby
zero
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Delphin Technology AG
Dezember 2015
ProfiMessage Manual